Chassis construction on motor vehicles



H. E. BUCK.

cHAssls coNsTucTloN oN Moon vEHncLEs.

APPLICATION FILED MAY 7. |917.

Patented Dee. 2, 1919.

4 SHEETS-SHEET l.

H. E. BUCK.

CHASSIS CONSTRUCTION oN M oo VEHICLES.

APPLICATION FILED MAY 7\ I9I1.

1,323,739. Pmnd De. 1919.

4 SHEETS- 2.

' H. E. BUCK.

cHAssls CONSTRUCTION ON MOTOR VEHICLES.

APPLICATION FILED MAY I. 19H.

1,323,739. Patented Dee. 2, 1919..

4 SHEETS-*SHEET 3.

l.. "al

H. E. BUCK. CHASSIS CONSTRUCTION ON MOTOR VEHICLES.

APPLICATION FILED MAY 7. 1917.

Patented Dec. 2,1919.

amsn ormoni.

HAROLD ELLIS BUCK, or swi'ivioixr, ENGLAND.

CHASSIS CONSTRUCTION MOTOR-VEHICIES.

,To all whom t may concern:

Be it known that l, HAROLD ELLIS BUCK,

a subject of the King of Great Britain, and l Ireland, and resident of Swinton, Manchester, England, have invented certain new and useful Improvements inChassis Construcabout a longitudinal axis, thereby allowing x of each part of the chassis adapting itself according to the contour of the road, or the position of the load on the vehicle, without- `.putting strains on the adjoining parts, said construction allowing of the Yindependent f movement of the parts without interfering .with the transmission gear.

According to the invention the chassis is divided into two, or more, parts,.the :adjacent ends-of the load-carrying and motor carrying parts being supported upon a common axle .upon which are mounted the tractor wheels. lThe rear part of the chassis is connected to said axle to which` isalso connected a frame, the outer yend of said Aframe being journaledv on a cross bar, the ends of which engage guides on thefront part of the chassis. -The connection is ,such that said cross bar and guides are free to )swivel independently about a longitudinal axis, while the connection of the cross-bar to the-driving axle permit'sof relative. rotary movement about a transverse axis. The center of .said cross-bar coincides substantially with the center of movement of a univer/sal joint in the Cardan shaft, the rotary movement being transmitted from the Cardan shaft to the tractor wheels through a live axle `in the usual manner. l

According to a modified construction the differential axle isconnected to, or, forms .part of, the before-mentioned cross bar, in

which Ycase rotary movement .may bev transmitted tothe road wheels through a chain drive. f n Y The Yinvention willjbe more particularly described by the aid of thev accompanying drawings, in which: Y

F "gure 1 is a side elevationof such part of a motor vehicle suflicientto show iny inventionl' l Specification of Letters Patent.

y Patent-ea nee. 2, ieie.

Application iled May 7, 1917. Salarial No. 166,890.

'Fig'. 2 is aplan view of, F ig. 1. Figs. 3 and are views corresponding to F1g.31, but with the front and vrear part ,of the chassis shown separated.

F ig. `5 is a sectional view, but to a larger scale.

Fig. 6 is a plan view of a modied form ofthe device. 1 l. `Referringto Figs. 1 to 5 ofthe drawings, Athe chassis is divided into-two'm'ain parts 1 kand 2 of which the former, hereinafter referred to astlie load frame, is adapted to ,carry the load, while the part Qcarries the motor and is referred to as the motor frame. The load frame is mounted by means of the spring 3 upon the differential axle 4, to

' which the tractor wheels 5, 5 are connected in the usual manner.' Rigidly connected to VVthe axle4 are two sets of stay bars 6, 6

and 7, 7 constituting a rigid under frame with s aid axle. Across the bars 7, 7 is arranged a transverse spring 8, the apex of which supports the rear end'ofthe motor frame 2 as-s'een more particularly in Fig. 5.

Journaled in the ends of the bars 6, 6 is a lcross Abar 9, the centerV of which is formed with a collar or ring 10, through which passes the Cardan shaft 11 of the engine, said shaft-being provided'with a universal joint 12'whose center of movement coincides .substantially with the point of intersection of theaxial and transverse centers of the cross-bar 9, the movement of the Cardan shaft beingl transmitted to the live' axle in theJ usual manner. The ends of the crossbar 9 are provided with shoes 13, the outer faces of which are curved, when viewed from Athe end,y thecurves beingstruck from `the center of the collar or ring 10. Correspondingly shaped guides 14C 'are Ysecured ato the frame-work 2,'said guides having flaiigesto retain the shoes in position thereby forming Va 'connection for the frames 1 andq2. A motor-15 is-carried by the frame 2 and is controlled from the driving seat 16, vwhich is also on the frame 2. in the usual or other convenient manner,'the frame itself being provided with wheels 17 Vat the front and resting upon the apex of the spring 8 at the rear asxbefore described. y j

The frame 1 is adapted to receive the load, the vehicle body lbeing securedthereto; or the front part of a vehicle body 18 maybe connected thereto by the swivel connection Supported uren independentwheels- The disposition andv arrangement of parts on the two chassis parts, or elements, 1 and 2 are clearly shownv in Figs. 3 and 4 which illustrate the completed elements before beingcoupled together. In this position the Y' cross bar 9 is free to rock transverselyl inits guides 14, consequently when said barlis` connected to the stay bars 6,6,the frame 2 is free to rock transversely independently of theaxle 4.and vehicle body 18 and vice versa. Y

As thecross-bar 9 is rotatably mounted on the ends of the stay bars 6, 6 vit follows that thezframel is also free to move independentlyV in the longitudinal direction .about said bar 9 as center. As the center 10EL of the Vvcross bar 9 coincides with the center of movement ofthe universal 'joint 12, this dual movement can take place wlth- -out affecting they power transmission to the driving axle. The usual clutch and change speed vgear are interposed between the joint 12 and the engine 15. n

Fig. 6 shows the improved chassis adapted for use with a chain drive. In this VVcasethedifferential or live shaft 20 is carried at the ends of the stay bars 6,6, after f e' the manner of the cross bar 9 in' the previous example. The casing of Said live shaft is provided with curved shoes 13 engaging corresponding curved guides 14 onv the frame '2 as in the last example but* said guides are slottedrto allow the ends ofthe live axle to project. VSaid ends are provided with sprocket wheels 21, 21 over which pass the chains 22, 22, through which the drive is transmitted to the sprocket wheels 23, 23 on j the -driving'wheels 5a, 51L mounted uponthe wheels touching the same, without any stresses or strains being imparted to said chassis orl the power transmission gear.

Conversely, the chassis elements can adjust themselves independently to any inequalities of the loading. f

Y What I claim is y Y V 1. In motor vehicles, an articulated chassis, tractor wheels on one element of the chassis adapted to receive 'the' load` and la motoron the other element, transmission gear for transmitting motion from the motor tothe tractor wheels, means to rconnect the two' elements of the chassis together which permit relative' rotary movement of: said A elements about a longitudinal axis and alsoV about a transverse axis without affecting the transmission gear, substantially as described. v

,2. In motor vehicles, an articulated chassis, tractor wheels mounted on one element `of the chassis, to which is also `connected an under carriage, arotatably mounted cross bar on said underframe, guides on the second chassis element to receive the ends of the cross bar, a motor mounted onsaid :second element, togetherwithr transmission means, connected to the tractor wheels, substantially as described.

3.*A motor vehicle having an Yarticulated chassis, amotor and motor controlling elements Vattached to one part of' saidchassis, Y

tractor wheels mounted `on theA other'cnassis element, means capable of swiveling longitudinally .and transversely for connecting thetwo parts of the chassis together, transmissiongear between the motorand the tractor wheels and adapted to swivel with the chassis elements, and means to receive the load on the rear part of the. chassis substantially as described. ,Y 'f

4. A motor vehicle having an articulated chassis, a motor andv motorcontrolled elements attached to one part'of said chassis,

.tractor wheels mounted onthe other chassis element, means capableof swiveling' longi' tudinally andtransversely for. connecting the twov parts of the chassis together,transmission gear between the motor'andfthe Vtractor wheels and'adapted to swivel Ywith f the chassis elements, together with' loadcar- Tying m-eans on the rear chassis" element, substantially as described.v Y`

A 5. A motor vehicle-havingan varticulate I chassis, al motor and motor controlling elements attached AtoV one part of said chassis together with' means for'"steering` the vehicle, curved` guide memberson said chassis element and a cross-bar having .curved shoes to fit said curvedguides, `tractor wheels,y

mounted on .the other chassis elementV together with j ournals' for the 'beiore-men-fY tioned cross-bar yand means to transmit power from the motor to the tractor, wheels,

substantially as described.n 6. motorV vehlclehaving an articulated chassis, amotor and 'motor controlling elevments vtogether with steering means secured tothe front lelement of said chassis,y tractor Y wheels mounted 'in the rear, chassis element,

a cross bar` rotatably mo'untedon' said rear chassis, curved shoes Aat the endV yof said loo cross bar, to engageV curvedV guides onV the front chassis, a central ,opening 1n said crossbar toV receive the'motion transmitting shaft, a universaljjolnt 1n said transmission shaft substantially coincident with the aperture in the cross-bar, substantially as described. e

'75A motor" vehicle having an articulated chassis, tractor wheels and loadV carrying means on the rear chassis member, a differential axle for said wheels, universal swiveling means to connect the two parts of the chassis together, a motor on the front chassis element together with change speed gearing and a transmission shaft leading from said motive power to the differential axis, a universal joint in said transmission shaft, the center of movement of which coincides with the center of movement of the universal connection of the chassis'elements, substantially as described.

8. A. motor vehicle having an articulated chassis, interconnected motive power and tractor wheels on the separate elements of 15 said chassis, a universal swiveling connection for the two parts of the chassis and spring means to maintain the two parts of the chassis in the correct horizontal position, together with load carrying means, substan- 20 tially as described.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

HAROLD ELLIS BUCK.

Witnesses I HENRY J-UNCA, MARION E. CLOUD. 

